Comprehensive Income (Details) (USD $) In Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Components of other comprehensive income
Net income	$ 45.0	$ 48.3	$ 37.8	$ 46.7
Foreign currency translation adjustments, net			27.7	(18.7)
Derivatives and other, net of tax benefit of $4.4 and $5.2 in 2011 and 2010, respectively			(10.6)	(5.6)
Comprehensive income			54.9	22.4
Comprehensive income (Textuals) [Abstract]
Other Comprehensive Income Tax Benefit On Derivatives And Other Expenses			$ 4.4	$ 5.2